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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:29:01 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:29:01 +0000
commit35a96bde514a8897f6f0fcc41c5833bf63df2e2a (patch)
tree657d15a03cc46bd099fc2c6546a7a4ad43815d9f /src/io/dir-util.cpp
parentInitial commit. (diff)
downloadinkscape-35a96bde514a8897f6f0fcc41c5833bf63df2e2a.tar.xz
inkscape-35a96bde514a8897f6f0fcc41c5833bf63df2e2a.zip
Adding upstream version 1.0.2.upstream/1.0.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/io/dir-util.cpp')
-rw-r--r--src/io/dir-util.cpp263
1 files changed, 263 insertions, 0 deletions
diff --git a/src/io/dir-util.cpp b/src/io/dir-util.cpp
new file mode 100644
index 0000000..69a01f1
--- /dev/null
+++ b/src/io/dir-util.cpp
@@ -0,0 +1,263 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * TODO: insert short description here
+ *//*
+ * Authors: see git history
+ *
+ * Copyright (C) 2018 Authors
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+/**
+ * @file
+ * Utility functions for filenames.
+ */
+
+#include <cerrno>
+#include <string>
+#include <cstring>
+#include <glib.h>
+#include "dir-util.h"
+
+std::string sp_relative_path_from_path( std::string const &path, std::string const &base)
+{
+ std::string result;
+ if ( !base.empty() && !path.empty() ) {
+ size_t base_len = base.length();
+ while (base_len != 0
+ && (base[base_len - 1] == G_DIR_SEPARATOR))
+ {
+ --base_len;
+ }
+
+ if ( (path.substr(0, base_len) == base.substr(0, base_len))
+ && (path[base_len] == G_DIR_SEPARATOR))
+ {
+ size_t retPos = base_len + 1;
+ while ( (retPos < path.length()) && (path[retPos] == G_DIR_SEPARATOR) ) {
+ retPos++;
+ }
+ if ( (retPos + 1) < path.length() ) {
+ result = path.substr(retPos);
+ }
+ }
+
+ }
+ if ( result.empty() ) {
+ result = path;
+ }
+ return result;
+}
+
+char const *sp_extension_from_path(char const *const path)
+{
+ if (path == nullptr) {
+ return nullptr;
+ }
+
+ char const *p = path;
+ while (*p != '\0') p++;
+
+ while ((p >= path) && (*p != G_DIR_SEPARATOR) && (*p != '.')) p--;
+ if (* p != '.') return nullptr;
+ p++;
+
+ return p;
+}
+
+
+/* current == "./", parent == "../" */
+static char const dots[] = {'.', '.', G_DIR_SEPARATOR, '\0'};
+static char const *const parent = dots;
+static char const *const current = dots + 1;
+
+char *inkscape_rel2abs(const char *path, const char *base, char *result, const size_t size)
+{
+ const char *pp, *bp;
+ /* endp points the last position which is safe in the result buffer. */
+ const char *endp = result + size - 1;
+ char *rp;
+ int length;
+ if (*path == G_DIR_SEPARATOR)
+ {
+ if (strlen (path) >= size)
+ goto erange;
+ strcpy (result, path);
+ goto finish;
+ }
+ else if (*base != G_DIR_SEPARATOR || !size)
+ {
+ errno = EINVAL;
+ return (nullptr);
+ }
+ else if (size == 1)
+ goto erange;
+ if (!strcmp (path, ".") || !strcmp (path, current))
+ {
+ if (strlen (base) >= size)
+ goto erange;
+ strcpy (result, base);
+ /* rp points the last char. */
+ rp = result + strlen (base) - 1;
+ if (*rp == G_DIR_SEPARATOR)
+ *rp = 0;
+ else
+ rp++;
+ /* rp point NULL char */
+ if (*++path == G_DIR_SEPARATOR)
+ {
+ /* Append G_DIR_SEPARATOR to the tail of path name. */
+ *rp++ = G_DIR_SEPARATOR;
+ if (rp > endp)
+ goto erange;
+ *rp = 0;
+ }
+ goto finish;
+ }
+ bp = base + strlen (base);
+ if (*(bp - 1) == G_DIR_SEPARATOR)
+ --bp;
+ /* up to root. */
+ for (pp = path; *pp && *pp == '.';)
+ {
+ if (!strncmp (pp, parent, 3))
+ {
+ pp += 3;
+ while (bp > base && *--bp != G_DIR_SEPARATOR)
+ ;
+ }
+ else if (!strncmp (pp, current, 2))
+ {
+ pp += 2;
+ }
+ else if (!strncmp (pp, "..\0", 3))
+ {
+ pp += 2;
+ while (bp > base && *--bp != G_DIR_SEPARATOR)
+ ;
+ }
+ else
+ break;
+ }
+ /* down to leaf. */
+ length = bp - base;
+ if (length >= static_cast<int>(size))
+ goto erange;
+ strncpy (result, base, length);
+ rp = result + length;
+ if (*pp || *(pp - 1) == G_DIR_SEPARATOR || length == 0)
+ *rp++ = G_DIR_SEPARATOR;
+ if (rp + strlen (pp) > endp)
+ goto erange;
+ strcpy (rp, pp);
+finish:
+ return result;
+erange:
+ errno = ERANGE;
+ return (nullptr);
+}
+
+char *inkscape_abs2rel(const char *path, const char *base, char *result, const size_t size)
+{
+ const char *pp, *bp, *branch;
+ // endp points the last position which is safe in the result buffer.
+ const char *endp = result + size - 1;
+ char *rp;
+
+ if (*path != G_DIR_SEPARATOR)
+ {
+ if (strlen (path) >= size)
+ goto erange;
+ strcpy (result, path);
+ goto finish;
+ }
+ else if (*base != G_DIR_SEPARATOR || !size)
+ {
+ errno = EINVAL;
+ return (nullptr);
+ }
+ else if (size == 1)
+ goto erange;
+ /* seek to branched point. */
+ branch = path;
+ for (pp = path, bp = base; *pp && *bp && *pp == *bp; pp++, bp++)
+ if (*pp == G_DIR_SEPARATOR)
+ branch = pp;
+ if (((*pp == 0) || ((*pp == G_DIR_SEPARATOR) && (*(pp + 1) == 0))) &&
+ ((*bp == 0) || ((*bp == G_DIR_SEPARATOR) && (*(bp + 1) == 0))))
+ {
+ rp = result;
+ *rp++ = '.';
+ if (*pp == G_DIR_SEPARATOR || *(pp - 1) == G_DIR_SEPARATOR)
+ *rp++ = G_DIR_SEPARATOR;
+ if (rp > endp)
+ goto erange;
+ *rp = 0;
+ goto finish;
+ }
+ if (((*pp == 0) && (*bp == G_DIR_SEPARATOR)) || ((*pp == G_DIR_SEPARATOR) && (*bp == 0)))
+ branch = pp;
+ /* up to root. */
+ rp = result;
+ for (bp = base + (branch - path); *bp; bp++)
+ if (*bp == G_DIR_SEPARATOR && *(bp + 1) != 0)
+ {
+ if (rp + 3 > endp)
+ goto erange;
+ *rp++ = '.';
+ *rp++ = '.';
+ *rp++ = G_DIR_SEPARATOR;
+ }
+ if (rp > endp)
+ goto erange;
+ *rp = 0;
+ /* down to leaf. */
+ if (*branch)
+ {
+ if (rp + strlen (branch + 1) > endp)
+ goto erange;
+ strcpy (rp, branch + 1);
+ }
+ else
+ *--rp = 0;
+finish:
+ return result;
+erange:
+ errno = ERANGE;
+ return (nullptr);
+}
+
+char *prepend_current_dir_if_relative(gchar const *uri)
+{
+ if (!uri) {
+ return nullptr;
+ }
+
+ gchar *full_path = (gchar *) g_malloc (1001);
+ gchar *cwd = g_get_current_dir();
+
+ gsize bytesRead = 0;
+ gsize bytesWritten = 0;
+ GError* error = nullptr;
+ gchar* cwd_utf8 = g_filename_to_utf8 ( cwd,
+ -1,
+ &bytesRead,
+ &bytesWritten,
+ &error);
+
+ inkscape_rel2abs (uri, cwd_utf8, full_path, 1000);
+ gchar *ret = g_strdup (full_path);
+ g_free (full_path);
+ g_free (cwd);
+ return ret;
+}
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vi: set autoindent shiftwidth=4 tabstop=8 filetype=cpp expandtab softtabstop=4 fileencoding=utf-8 textwidth=99 :